Help Please! Important system not booting!

Hello,
I have a system that upon bootup is showing the following message:

Configuration Manager cannot load because one of the following files is either not present or has an invalid version number: vmm.vxd, shell.vxd, vtd.vxd, vxdldr.vxd, vpicd.vxd, vwin32.vxd

try running setup again.

Press any key to continue...


When I press a key it shuts down.

Could this be a virus? I received an E-mail from someone I don't know. I clicked on it to select it so I could delete it. I did notice it had an attachment, but I didn't open the attachment (I know better).

This system has NAV that was updated about 1 to 2 weeks ago.

Would it be OK to re-run Windows setup on this system? The information on it is very important to me.

Thank you,

Al

couple of other notes:

This system will not start in safe mode, it gives the same results. It will start in DOS however. Anyone know of a DOS diskette based virus scanner (Or do I need it)?

Thank you,

AL

Try running a virus scan. If no virus is detected then perform the Windows setup but do not format your hard drive. You will not lose any of your files.

Definetely scan for a virus. I would recommend trying f-prot. You can download the dos version for free, but I can't seem to remember the URL. try running a search for f-prot on the web. also, there is a link to recent f-prot definitions on the windriversw homepage that might bring you to a site where you can download the entire thing. If I remember the link, I'll post it later. Its a relatively small download, but you will need I believe to floppy disks to transfer it to the infected computer. Also, although it might work when you boot to the hard drive, I recommend using a bootdisk. Basicly because if you boot to the hard drive then the virus might be resident in memory, and somehow cause F-prot to goof up. It usually doesn't happen that way, but in my oppinion why bother with the hassle when you know it will work if you use a bootdisk?

And I just remembered a site that has a pre-configured f-prot bootdisk on it that you can download. I don't know how recent the virus definitions on it are, though. it can be found at <a href="http://www.bootdisk.com" target="_blank">www.bootdisk.com</a>

I hope this will helps you out some

Get F-Prot <a href="http://www.complex.is" target="_blank">here.</a>